... advanced and morebandwidth-demanding multimedia applications and services, e.g.,Internet Protocol Television (IPTV), Voice over IP (VoIP), onlinegaming. A plethora of QoS requirements and facilities ... such as streaming and on-demand. Important research questions are, e.g., scalability, overlaytraffic measurements and modeling, data search and retrieval, loadbalancing, churn handling, QoS provisioning ... Internet access, TV and telephone services inone subscription on a broadband connection. Other important issuesare billing and content protection, e.g., copyright issues, encryption and authentication...